Hand-vise.



No. 662,535. Patented Nov. 27, |900.

C. H. JENKINS.

HAND VISE.

(Application sled :my 22, 19'00.)

(No Nudel.)

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CHARLES H. JENKINS, OF LEBANON, NEW HAMPSHIRE, ASSIGNOR OF ONE- HALF TOFRANK B. KENDRIOK AND WILLIAM F. DAVIS, OF SAME PLACE.

HAND-VISE.

SPECIFICATION forming part of Letters Patent N o. 662,535, datedNovember 27, 1900.

Application filed May 22, 1.900.

T tZZ whom t may concern:

Be it known that I, CHARLES H. JENKINS, a citizen of the United States,and a resident of Lebanon, in the county of Grafton and State of NewHampshire, (and whose post-office address` is Lebanon, New Hampshirehave invented certain new and useful Improvements in IIand-Vises, ofwhich the following is a specification, reference being had therein toIo the accompanying drawings.

The invention relates to improvements in hand-vises, and has for itsobject to provide a simple and efficient vise especially adapted forholding jewelers pins, wire, and other like articles. It is not,however, hereby intended that the use of my new and improved vise is tobe limited to the use above specified, as it is obvious that by reasonof its peculiar con-' struction it may be used to great advantage zowhenever it is desired to hold any article whether of a round body orshape or otherwise with the greatest firmness.

The invention consists of the novel features of construction hereinafterset forth and described and more fully set forth in the claim heretoappended. i

Referring to the drawings, Figure lis a side elevation showing the jawsopen. Fig. 2 is a plan View of the same. Fig. 3 is a longitu- 3o dinalsection showing the jaws open. Fig. 4E

is a similar view with the jaws closed. Fig.

5 is a view of a cross-section taken' on the line 5 5 of Fig. i lookingin the direction of the arrow. Fig. 6 is a perspective view of the blockwith screw-threaded projection, and Fig. 7 is a perspective View of thecollar with screw-threaded extension.

Like letters of reference refer to like parts throughout the severalviews.

ci d denote parallel jaws, preferably made of metal, each jaw beingprovided with two parallel oblique slots I), and c a block, alsopreferably made of metal, in which block said jaws are i'novablyarranged.

a' a denote the gripping-faces of the jaws, and c c' grooves in theblock c. The block c is provided with'a central opening c2 and anexteriorly-screw-threaded hollow projection c3.

d d denote pins corresponding in numbel` Serial No. 17.563. (No modelnand location with the slots h b and fixed in the block c and passingthrough said slots.

c. is a hollow rotatable handle made of suitable material, preferablygutta-percha, and fis a collar made, preferably, of metal and providedwith an interiorly-sciew-threaded extension or socket g, which latter issecurely attached to the handle e by any convenient means, as shown inthe drawings, Figs. 3 and 4, and which is adapted to receive and engagewith the screwthreaded projection c3. The inner ends of the jaws a d areprovided with notches 7L 7L, which embrace the collar f, whereby apositive connection between the said jaws and the handle e is made.

It is not hereby intended to limit the invention to a vise provided withjaws having but two pairs of slots and pins corresponding therewith, asabove described, for it is obvious that more than two pairs of slots,with their corresponding pins,may be used without departing from thespirit of my invention.

The mode of operation of the device in so far as it has not beendisclosed is as follows: The jaws being open, as shown in the drawings,Figs. l and 3, and it is desired to hold, for example, a piece of wireby the vise, the Wire is inserted in the opening c2 of the block c andthe block c held in one hand and the handle c rotated to the right bythe other. This causes the collar f, with its screw-thread ed extension,to travel forward on the screwthreaded projection c3, and thus force thejaws toward each other by a lengthwise parallel movement until stoppedby the wire between the faces of the jaws.

The operation of releasing the wire or other article is the reverse ofthat above described.

The construction above set forth is simple and at the saine time veryefficient, in that the article is held with very great force by reasonof the great leverage exerted by the rotating collar in positiveengagement with the jaws.

That I claimand desire to secure by Letters Patent, is*

A hand-vise7 having parallel jaws provided with pairs of oblique slots,ablock in which the said jaws are arranged and engaging said jawsthnougl. the medium of pins passedmhrough I-nv Witness whereof 1 havehereunto affixed said S1015, and having a screw-threaded eX- I mysignature,t3his 15th day of May, A.D.1900, tension, and a rotatablehandle having e co1- in the presence of two Witnesses.

lar fin positive engagement With the jaws, CHARLES H. JENKINS.

5 and a screw-threaded socket no receive and Witnesses:

engage the screw-threaded projection of bhe F. H. HOSORD, block,substantially as described. l

E. L, CHOATE.

